<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8">
		<title></title>
	</head>

	<body>
		<div>
			bbbbbbbbbb
		</div>
		<script type="text/javascript">
			window.onload = function() {
				window.addEventListener("message", function(e) {
					alert(e.data);
				});
				window.parent.postMessage("a data", "http://127.0.0.1:8020/reactDemo/a.html");
			}
		</script>
	</body>

</html>